Evaluate the exponential function for a double-precision complex floating-point number.
The exponential function of a complex number is defined as
var cexp = require( '@stdlib/math/base/special/cexp' );Evaluates the exponential function for a double-precision complex floating-point number.
var Complex128 = require( '@stdlib/complex/float64/ctor' );
var v = cexp( new Complex128( 0.0, 0.0 ) );
// returns <Complex128>[ 1.0, 0.0 ]
v = cexp( new Complex128( 0.0, 1.0 ) );
// returns <Complex128>[ ~0.540, ~0.841 ]var Complex128 = require( '@stdlib/complex/float64/ctor' );
var discreteUniform = require( '@stdlib/random/base/discrete-uniform' );
var cexp = require( '@stdlib/math/base/special/cexp' );
function randomComplex() {
var re = discreteUniform( -50, 50 );
var im = discreteUniform( -50, 50 );
return new Complex128( re, im );
}
var z1;
var z2;
var i;
for ( i = 0; i < 100; i++ ) {
z1 = randomComplex();
z2 = cexp( z1 );
console.log( 'cexp(%s) = %s', z1.toString(), z2.toString() );
}#include "stdlib/math/base/special/cexp.h"Evaluates the exponential function for a double-precision complex floating-point number.
#include "stdlib/complex/float64/ctor.h"
#include "stdlib/complex/float64/real.h"
#include "stdlib/complex/float64/imag.h"
stdlib_complex128_t z = stdlib_complex128( 0.0, 0.0 );
stdlib_complex128_t out = stdlib_base_cexp( z );
double re = stdlib_complex128_real( out );
// returns 1.0
double im = stdlib_complex128_imag( out );
// returns 0.0The function accepts the following arguments:
- z:
[in] stdlib_complex128_tinput value.
stdlib_complex128_t stdlib_base_cexp( const stdlib_complex128_t z );#include "stdlib/math/base/special/cexp.h"
#include "stdlib/complex/float64/ctor.h"
#include "stdlib/complex/float64/reim.h"
#include <stdio.h>
int main( void ) {
const stdlib_complex128_t x[] = {
stdlib_complex128( 3.14, 1.5 ),
stdlib_complex128( -3.14, -1.5 ),
stdlib_complex128( 0.0, 0.0 ),
stdlib_complex128( 0.0/0.0, 0.0/0.0 )
};
stdlib_complex128_t v;
stdlib_complex128_t y;
double re1;
double im1;
double re2;
double im2;
int i;
for ( i = 0; i < 4; i++ ) {
v = x[ i ];
y = stdlib_base_cexp( v );
stdlib_complex128_reim( v, &re1, &im1 );
stdlib_complex128_reim( y, &re2, &im2 );
printf( "cexp(%lf + %lfi) = %lf + %lfi\n", re1, im1, re2, im2 );
}
}